The Integra ADM 20.4 Power Amplifier is a high-quality preowned item that will enhance your audio experience. With two channels, it delivers powerful sound and is perfect for use in any home audio system. The black color and sleek design make it a great addition to any entertainment setup. This Integra model, ADM-20.4, is a reliable amplifier that has been previously used but is still in great condition. It is perfect for those who want to upgrade their home audio system without breaking the bank. The brand is known for its high-quality products, and this power amplifier is no exception.